3-3
SW USB Series • Operation
PRELIMINARY
2. Plug the power supply into the two-pole captive screw power connector on
the rear panel.
The unit performs a self-test, during which the Exec Mode LED and the front
panel Input LEDs each blink once in sequence from left to right. If the self-
test completes with no errors, the LED for the most recently selected input
remains lit.
3
. Select input 1 and power up the PC connected to it.
4. Select each desired remaining input and power up the PC connected to it.
Selecting an input
SW USB inputs can be selected by using
• The front panel buttons
• Contact closure
• SIS commands
• Keyboard (“hot key switching” — SW4 USB Plus only)
Selecting an input from the front panel
To select an input from the front panel, press the desired input’s button. The LED
adjacent to the selected input button lights.
After an input is selected, the LED remains lit until a new input is selected.
Selecting an input using contact closure
Use one of the following methods to select an input via contact closure:
• Using a contact closure device: If a two- or four-button contact closure device
is connected to the SW USB’s Contact port, press the button on the device that
corresponds to the SW USB input that you want to select. The rst button on
the left selects input 1, the second button selects input 2, and so forth.
• Using a jumper wire: On the Contact port, use a jumper wire to connect the
ground (_) port to the port with the desired input number (1, 2, 3, or 4). See
“Contact Closure Control” in chapter 2, “Installation” for more information.
• Using an IR 102: Refer to the IR 102 User’s Manual for this procedure.
Selecting an input using SIS commands
You can also select an input via an RS-232 connection using SIS commands. See
chapter 4, “SIS
™
Programming and Control,” for a list of available SIS commands
and their explanations.
If an Extron A/V switcher is connected to the RS-232 Pass Thru port, the SIS
commands that you enter can also be passed through to the connected switcher,
even if the connected switcher has more inputs than the SW USB (see the next
section).
Selecting an input using the keyboard (SW4 USB Plus only)
When a keyboard is connected to an emulation port and the keyboard emulation
DIP switch (switch 2) is set to On, you can switch to a desired input by
pressing Ctrl + Shift + input number. (For example, to switch to input 3, press
Ctrl + Shift + 3.)
See “Host Emulation (SW4 USB Plus only)”, later in this chapter, for information on
setting up the SW4 USB Plus for host emulation.
(19 paginas)
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